![Capacities for Ordinary Bolts to BS449: Part 2 1 Capacities for Ordinary Bolts to BS449 Part 2](https://excel.civilmdc.com/wp-content/uploads/2021/11/Capacities-for-Ordinary-Bolts-to-BS449-Part-2.png)
Capacities for Ordinary Bolts The shear strength of a bolt is a measurement of the minimum amount of force needed to break the bolt into two pieces. The shear strength of a metal bolt is approximately 0.6 times its tensile strength. A bolt commonly shears where its head meets the threads.